EP1843899A1

EP1843899A1 - Stamping tool in a printing mechanism with a matrix and punch

Info

Publication number: EP1843899A1
Application number: EP06701495A
Authority: EP
Inventors: Rainer Gebhardt
Original assignee: MAN Roland Druckmaschinen AG
Current assignee: Manroland Sheetfed GmbH
Priority date: 2005-01-21
Filing date: 2006-01-20
Publication date: 2007-10-17
Anticipated expiration: 2026-01-20
Also published as: US20080121123A1; WO2006077134A1; EP1843899B1; JP2008528315A

Abstract

The invention provides a method for mounting multipart stamping molds in printing machines in order to simplify stamping work. To this end, lower and upper stamping molds (3A, 3B) are mounted together, and a counter tool is placed on the working surface of the stamping tool while being able to roll off. This makes it possible to easily achieve a correct fitting of the parts of the stamping tools.

Description

EMBOSSING TOOL IN A PRIVATE JOINT, WITH MATRICOUND PATRIZE

The invention relates to a device, a method and a photopolymeric embossing mold according to the preambles of claims 1, 9 and 15.

It is known to perform embossing in printing units. In this way, a refinement of a printed product can be linked to the printing process within a printing press. This work was often carried out outside of the printing press in subsequent operations. Embossing operations have so far been mostly done offline. Only work such as grooves, punching or perforating were carried out in printing presses.

From DE 41 38 278 C2 is known to use a device for punching, grooving and perforating sheetfed presses in a paint module of a sheet-fed press. For this purpose, a corresponding tool on the Formzy-. attached to a paint module. The tool works against the printed sheet resting on the corresponding impression cylinder. The disadvantage here is that most of the printed products must be painted and thus the optional use of the paint module can only be used for a very small proportion of print jobs.

Described is the embossing or grooving in a printing press with double-sized impression cylinders and a protective overlay on the impression cylinder. With embossing or embossing, only one embossing or scoring mold can be used, which is clamped on the forme cylinder of a printing press.

Furthermore, from DE 198 26 974 A1 an embossing device is known. Here, too, an embossing process in the process of so-called blind embossing is carried out in a lacquer module or a printing unit. In this case, a full-area embossing plate is used, which works against an elastic counter element. Z

Furthermore, EP 0 862 774 B1 discloses a device on a printing machine for perforating, stamping, cutting, creasing and partial lacquering or for printing envelopes. In this device it is provided to attach tools to a plate which can be clamped in a cylinder of a printing press. The tools are positioned on the corresponding plate with self-adhesive backs and fixed there. To edit a sheet within the printing machine, a protective film is provided on the opposite cylinder.

In DD-PS 231 760 a method for embossing on Bogenoffsetdruckrtia- is described machines, in which on the impression cylinder of a printing machine suitable for embossing bimetallic plate (male) is glued and a blanket on a blanket cylinder of a printing unit or on the Forrnzy-. Linder a coating unit serves as a die. This type of application has the significant disadvantage that the gluing of such a plate on the impression cylinder is very expensive and a later register correction is very difficult. Another. The disadvantage of printing presses with double-sized counter-pressure cylinders is that two male parts have to be mounted precisely on the impression cylinder. In addition to the high costs of creating two patrices, at least twice the set-up time for mounting the patrix plates must be estimated.

DE 201 11 983 U1 describes a printing machine in which a counter-pressure cylinder is protected by a special protective film against mechanical effects of the forming tools. The disadvantage here is that a high embossing is not possible because it would have to be the embossing mold on the impression cylinder.

Notes on protective devices for cylinders of printing machines are shown in DE 198 26 974 C2 and DE 102 11-991 A1. In each case, the reciprocal application of protective films on counter-pressure or forme cylinder is described, depending on whether a high or low embossing is desired. A further disadvantage is that in the case of embossing in a printing machine with double-sized gendruck cylinders two forms must be accurately fitted on a counter-pressure cylinder.

DE 44 35 307 C2 describes a method and a device for perforating, punching and embossing. A mechanical processing of the substrate should be done in the printing press before the actual printing. This will obviate the problem that ink can deposit on the forming tools because the unprinted substrate is deformed. However, there is the problem that imprints are at least partially equalized by the printing process in the subsequent printing units.

In DD-PS 95 851 a sheet-fed rotary printing machine is described, in which a stamping plant is connected to a sheet-fed rotary printing machine via a coupling. Similar solutions of the connection of stamping units with sheet-fed printing machines are also known from US Pat. No. 3,832,944, DE 20 2004 018 764 U1 and DE 20 2004 018 763 U1. A disadvantage of these solutions is that the punching units as ^' expensive special units for operation of the printing press without mechanical deformation of the printing material are more of a hindrance.

For the production of embossing molds different materials are known. Here are photopolymer plates from flexographic or high pressure well known. A required relief of these plates is produced by exposing and then removing the unexposed plate material by a suitable device. Another method of production is engraving, whereby the non-required plate material is removed by laser engraving or another suitable engraving process. Such plates can be used in a very advantageous manner for embossing paper, paper composites, plastic or metal foils. A matrix form carries recesses which receive the embossed motif of a corresponding male form.

When embossing is generally between the embossing (the embossed relief protrudes beyond the substrate surface) and the deep embossing (a depression is embossed in the substrate) a distinction. The stamping die, the raised ones Contains embossing elements, called patrix. The counterform having recesses is called a die. In some cases, counterforms that have elastic or other deformable properties but no depressions are referred to as a die. Matrix is therefore generally the counterpart to the patrix. Most applications require embossing, especially when haptic (tactile, tactile), detectable information, for example by braille, to be transported.

For embossing work with elaborate patterns, a procedure of embossing integrated in a printing machine has not been described hitherto. The experts, for example, therefore held such a procedure, since in particular so-called registration here are much more complex. It goes without saying that in the case of an optionally complex three-dimensional patterning, the accuracy of the two stamping elements die and male part must be much higher than, for example, in the case of a simple score line.

The object of the invention is therefore to provide a device, a stamping mold and a method for improved implementation of stamping in printing presses.

The solution of this task is inventively according to the characterizing features of a method according to claim 1, the characterizing features of a device according to claim 9 and the characterizing features of a photopolymeric embossing mold according to claim 15.

By the combined attachment of a three-dimensional embossing mold on one surface of a cylinder and the settlement on the opposite cylinder, there being provided a holding plate, a simplified assembly method for embossing forms within a printing machine is provided.

The device is advantageously designed so that the bearing surface for the lower embossing die is provided as a plate mountable on a corresponding cylinder. The plate can be made of metal or plastic foil. be. Thus, with appropriate positioning of the plate on the cylinder and the attachment of the corresponding embossing mold on the cylinder at any time position repeatable repeatable.

An embossing mold which can be used in the method and the apparatus advantageously has connecting elements corresponding to one another for the two stamping mold parts, so that their combined assembly is possible in a simple and precisely positioned manner.

Further advantageous embodiments of the invention will become apparent from the respective dependent claims.

In the following the invention with reference to drawings is shown in more detail. In detail, show in it

FIG. 1a shows a cross section through a processing plant,

FIG. 1 b shows a cross section through a further processing plant,

FIG. 2 shows a schematic drawing of a stamping mold,

FIG. 3 shows a first schematic representation of an assembly according to the invention of a stamping mold,

Figure 4 is a second schematic representation of an inventive

Mounting a stamping mold and Figure 5 shows another arrangement for mounting a stamping mold.

According to FIG. 1a, a counter-pressure cylinder 1 and a blanket cylinder or forme cylinder 2 opposite this are provided in a processing plant of a sheet-processing printing press, for example. On the counter-pressure cylinder 1, a printing sheet to be processed is guided on gripper devices. On form cylinder 2 or blanket cylinder pressure plates or blankets are usually mounted. In the case of embossing, a stamping mold 3 is arranged on the corresponding cylinder. This can be a positive or negative stamping die (male, female). The stamping mold 3 can be placed on a base geplatte 4 arranged and be clamped by means of this on the forme cylinder 2 and blanket cylinder.

FIG. 1 b shows a diagram of a further processing unit of a sheet-processing printing press. This processing plant has a so-called double-sized impression cylinder 1, which is provided with two working surfaces and a corresponding plurality of clamping devices 9. The embossing molds 3 and pads 4 are mounted on the forme cylinder 1 or blanket cylinder and the working surfaces of the impression cylinder 1. ^{■ '} .

Depending on the stamping process can be hineingeprägt by means of a stamping mold 3 in a soft mating surface. By means of such a method, however, only simple embossing patterns can be created.

In the case of embossing with an embossing mold 3 consisting of male mold 3A and female mold 3B, much more complex patterns of high quality can be produced. A schematic of such a stamping mold is shown in FIG.

For this purpose, the device has, as shown in FIG. 2, a base plate 4 which can be mounted on an impression cylinder 1. For this purpose, clamping devices 9 are provided on the impression cylinder 1 (see FIG. 1). Thus, after completion of the job, the base plate 4 can be unclamped with the tool from the impression cylinder 1 and reused. To facilitate reuse on the counter-tool on the form cylinder 2, is. the position of the tool on the forme cylinder is detected, ie held firmly by manual marking or by measured values of a corresponding position sensor. For a repeat order, this configuration can be marked, the corresponding setting implemented during the re-establishment and the printing press can be put back into operation after the shortest possible set-up time. The accuracy of fit between the embossing and the printing is achieved via registration in the printing unit. The base plate 4 has register punches 7 in a clamping area. On the base plate 4, a flat register frame 5 may be provided, which is arranged displaceably relative to the base plate 4. Thus, the register frame 5 can be positioned relative to the surface of the forme cylinder 2 or impression cylinder 1 or the clamping devices 9 or the register punches 7.

On the surface of the register frame 5 or directly on the corresponding base plate 4, the embossing mold 3 can now be arranged. The stamping mold 3 can be broken down into individual elements. The individual elements can in turn be combined into several as a stamping mold segment in order to achieve a simplified assembly. For this purpose, the individual elements of the stamping mold 3 can be preassembled on a basic mold 6 or combined into a basic mold 6. This comes into question in particular when the embossing molds 3 are arranged linearly in the direction parallel to the axis of the respective cylinder. In particular, when distributed on the circumference of a cylinder individual elements of the embossing mold 3 for cost reasons, a subdivision is preferable, so that the assembly of the individual elements of the embossing mold 3 and also the production of the embossing mold 3 in itself simplified, but above all cheaper. On the base plate 4, a scale 8 can be provided, which simplifies the alignment of the register frame 5 with the embossing mold 3.

FIGS. 3 and 4 show the construction of an embossing tool from an upper embossing mold 3A and a lower embossing mold 3B.

The embossing mold 3A is mounted on a base plate 4. The embossing mold 3A has die elements 10 as depressions in the form of the contour to be embossed. The embossing mold 3B is divided into two individual elements and has male elements 11 as elevations corresponding to the die elements 10. The attachment of the individual elements of the embossing mold 3 B can be done separately on a base plate 4. However, it may also be provided the described basic shape 6 for fixing the individual elements on the base plate 4. Between the embossing molds 3A and 3B, an auxiliary film 3C is provided as an intermediate layer for simulating the printing material to be processed later. When dividing the embossing mold 3B into individual elements, the auxiliary film 3C can be divided accordingly. The auxiliary film 3C has openings which correspond to or comprise the male elements 11 in groups. The auxiliary film 3C can have adhesive properties on both sides. When the embossing mold 3B is placed on the embossing mold 3A with the auxiliary film 3C interposed, the male elements 11 thus pass through the auxiliary film 3C and can be aligned in the embossing mold 3A in the die elements 10, the auxiliary film 3C releasably connecting the embossing molds 3A and 3B ,

Alternatively, latching elements are provided on the embossing molds 3A and 3B (see FIG. 5), which can serve to align the embossing molds 3A, 3B relative to one another and to fix them. The auxiliary film 3C then possibly only serves as a spacer.

To assemble the embossing mold 3, a package is formed from the two embossing mold parts 3A and 3B. Here, the embossing forms 3A and 3B by means of self-adhesive elements or by mechanical elements or by locking elements with each other (see also Fig. 5) are connected. This ensures that the embossing molds 3 or 3A and 3B are exactly aligned with each other. During assembly, the package of embossing forms 3A, 3B on the example, upper cylinder (forme cylinder 2 or blanket cylinder) is first mounted on the right fit. For this purpose, either a base plate 4 or a planar register frame 5 arranged on it (see in FIG. 2) can be used. On the respective element, a grid pattern may be provided. The grid pattern advantageously provides clues for an exact positioning of the embossing forms 3A, 3B. For later adjustment can be provided that the corresponding cylinder (forme cylinder 2) relative to the adjacent cylinder (impression cylinder 1) is provided for adjustment with a register adjusting device.

For mounting the upper embossing form eg 3A on the upper cylinder (forme cylinder 2), this is provided on its back with a self-adhesive layer. After mounting the embossing molds 3A and 3B into a package and its attachment 3 on the upper cylinder (forme cylinder 2), the self-adhesive eg adhesive layer on the underside of the outer embossing mold 3A or 3B must be activated. Thereafter, a rolling process between the cooperating cylinders (forme cylinder 2, impression cylinder 1) is performed, wherein the provision between the two cylinders must be selected so that no crushing of the embossing forms 3A, 3B arises. When unwinding, the lower embossing mold (here: 3B) is now automatically aligned with the surface of the lower cylinder (impression cylinder 1). In this case, the embossing mold 3B adheres to the surface and is removed from the upper embossing mold 3A. It is important that the self-adhesive layer has sufficient adhesive force to be able to solve the connection between the two embossing forms 3A, 3B without displacement.

The process is as follows in steps:

1. clamping the tool (base plate 4 with mounted embossing mold 3) on the forme cylinder 2; Here also a photopolymer plate, as known from painting, can be used with adapted hardness.

2. If necessary Fitting the embossing mold 3 to a predetermined print image if necessary. This can be done via displacement of the base plate 4 or moving the embossing mold 3 by means of the register frame 5 on the base plate 4 or registers of the cylinder (forme cylinder 2).

3. Fixing of the counter-tool (lower / upper embossing mold 3A or 3B) on the blanket or form cylinder 2 in the already fitted corresponding tool (upper / lower embossing mold 3B or 3A), if necessary using documents (eg auxiliary film 3C) between the dies (3A ₁ 3B). Aids: Fitting elements eg cones with counter elements used on embossing forms (3A, 3B). Improved handling and adjustment of the distortion on the impression cylinder _. he 1 to be applied embossing mold 3B results from their division into several segments. 4. A on the back of the outside tool of the tool package (upper or lower embossing 3A or 3B) attached self-adhesive film (possibly also magnetic film) is activated (loosening a protective film, heat, etc.).

5. Under defined Druckbeistellung the tool package from the stamping mold parts 3A and 3B is unwound with the impression cylinder 1, wherein the counter tool on the impression cylinder 1 adheres to the basic tool dissolves. The counter-tool (upper or lower embossing mold 3A or 3B) is now fixed in the correct position on the impression cylinder 1. The auxiliary foil 3C can be removed without residue from the lower die (embossing die 3B,

Male) are deducted.

6. For a double or triple size, i. provided with two or three working surfaces impression cylinder 1 (see Fig. 1a), the steps 3 to 5 must be repeated accordingly often, so there is the corresponding plurality of counter tools available.

As outlined in FIGS. 3 and 4, the sequence in the first three steps can also be summarized in two steps as follows:

1. Outside the printing press, the tool package is prepared from the following components:

a. High-pressure stamping mold (for example photopolymer plate) or embossing mold 3A on base plate 4 for forme cylinder 2; is suitable for conventional clamping devices 9; this can be the template for making a Braille font.

b. Auxiliary film 3C in material thickness of the printing material can be provided with adhesive layer on both sides in order to fix the embossing forms 3A, 3B to one another (for example, carried out as a slightly adhesive film); embossing elements are recessed for flush mounting; also applies to braille shapes. U c. Counter-tool 3B for impression cylinder 1. Base plate 4 (eg photopolymer on plastic carrier) also as segmented embossing forms 3B (about 150 mm in the circumferential direction) on embossing mold / s after step 1.a. and 1.b. attach; Align the segments of the embossing 3B by fitting elements by optical or mechanical means.

2. The entire package of embossing forms 3A, 3B with the auxiliary film 3C (possibly pad plate 4, possibly register frame 5, possibly basic shape 6) is mounted by means of clamping devices 9 on the forme cylinder 2; with good mounting standard, a fitting accuracy of 1-2 mm to offset printing is achieved.

The process according to step 2 can be carried out using a device for semiautomatically or fully automated plate clamping and is therefore processed much faster.

Furthermore, in this device, the possibility also on the impression cylinder 1 to provide a semi or fully automated plate change. Here, instead of a printing plate changing device, a counter pressure plate changing device is used. Thus, the function of the impression cylinder 1 can be made variable, e.g. by changing the support plates on the impression cylinder. 1

In this case: a. Cylinder jackets for high-quality S + W printing b. Structural chrome plates for standard S + W and aggressive substrates c. Chrome plates as protection for standard applications d. Embossing plates for structural embossing e. Embossing plate for high-quality blind embossing with male and female f. Cylinder jackets with a modified surface for targeted texture reproduction in fresh perfecting.

In order to adapt the unwinding conditions for cylinders of different sizes or even for cylinders of the same size, pads should be provided on both cylinders. In a first variant, underlay sheets can be secured by clamping rails or films are changed under the cylinder surface. For this purpose, a so-called jacket surface is mounted on the cylinder. In a second variant, a calibrated foil can be automatically drawn from a corresponding cassette onto the cylinder.

An appreciation of the system is created by the possibility of registered base plate 4 registem, both in the scope and the side. This can be done via the clamping device 9 or the impression cylinder 1. Passport systems with interrogators via position encoders ensure reproducible handling.

In the sense of automation and shortening of set-up times of high-quality blind embossing including perforation, punching and creasing, the coordination of offset printing form, forme cylinder tool and impression cylinder tool can be linked in an intelligent evaluation unit. ,

This can be done as follows:

1. Tuning of the punching tools by the two embossing forms 3A and 3B possibly also divided into several benefits are provided with passive or active transmitting elements. This allows identification and position recognition. An evaluation unit may receive the signal match i. Release for printing or correctly required, i. Wrong counter tool process wrong position. This provides the operator with suitable information in order to carry out the further adaptation of the tool position. Furthermore, signals for shifts in all directions are conceivable and deviation-proportional signals can be produced.

2. The position of an offset printing foreseen for an image printing can be detected via a punching ie matching to the format edge and used for positioning the stamping tool 3. For this purpose, the stamping mold 3 must have a positionally accurate punching. 3. Alternatively, it is conceivable to apply a transmission element in the offset printing unit, which is evaluated according to item 1.

Advantages of this method and the device are high accuracy of fit of the embossing by the gripper closure within the sheet-fed offset printing machine. The inline process saves a work step, which usually has to be done at a significantly lower production speed. The embossing on creases, punching and the like run, since these are produced in a special step. Furthermore, an automated coordination of the embossing on the print is possible. Finally, there are many other possible uses of the stamping plant.

This results in the following advantages of o. G. procedure:

- Quick assembly of the tools already matched in the machine outside the machine. Low machine downtime

- Inline process saves a work step that usually takes place at a significantly lower production speed (about 8000 B / h)

- Embossing can be done by creasing, punching u.a. run as they are produced in a separate step. - Quick replacement of a Braille font of a consistent packaging without set-up times on the punch.

Further inventive methods can be integrated into the printing press. The embossing tool - ideally designed as a die and male part in case of blind embossing - is fastened to printing 1 and forme cylinder 2 (or blanket cylinder in the printing unit). The forme cylinder 2 can be made stronger for the special requirements (increased rigidity). In further steps can be painted or otherwise refined. Mechanical deformation of the substrate serves to refine or modify the substrate for further processing (structure embossing). The embossing can also be used for information transmission in the form of braille. H

FIG. 4 shows a special embodiment of a stamping mold 3 for the production of tactile elements according to the Braille script.

The method described here is used for mounting embossing tools, which do not necessarily have to be matched to offset printing with the greatest accuracy of fit. This can e.g. to be the named Braille font.

According to FIG. 4, the die or embossing mold 3A on the forme cylinder 2 can also be designed as a universal stamping mold. Such universal stamping mold 3A contains a full-surface grid of depressions for the production of Braille stamping elements. This universal stamping mold 3A is contrasted only with the necessary for the embossing of Braille information Patrizenelemente or embossing moldings 3B. This eliminates the adjustment of 'stamping elements 3A on the forme cylinder 2. Rather, the universal stamping mold 3A remain clamped for several jobs and only the male or lower embossed mold parts 3B must be replaced. With the simplified assembly method described the effort for this is minimized.

The arrangement can also be chosen so that the universal embossing mold 3A is provided as a male part corresponding to the braille sensing elements increases. The counterform is then formed as die elements consisting of stamped moldings 3B.

A rationalization is possible with an impression cylinder 1 with clamping devices 9. After the end of the job, the underlay plate 4 with the positioned embossing dies 3B, can be removed from the impression cylinder 1 and reused. In order to facilitate the fitting on the tool on the forme cylinder 2, the position of the tool on the forme cylinder 2 is markedly held marked (manual marking or automatic position sensor). For a repeat job, this configuration can be put back into operation without the relatively long set-up times. The accuracy of fit between embossing and printing is then achieved via existing register options in a printing unit or coating module.

5 shows an arrangement for mounting a package of two corresponding stamping moldings is shown schematically. In an embossing operation, it is necessary that there is a so-called overfill 12 between embossed motif 14, which is located on the male mold 3B and the corresponding depression / counter-mold, which is located on the female mold 3A, which makes it possible for the printing material to be embossed snuggles into the space between the dies 3A, 3B. Without this overfilling the substrate would tear during the embossing process.

Due to the overfilling, however, a displacement between the female mold 3A and the male mold 3B can not be ruled out during the assembly process in a printing press, since as a rule the development of the two elements is not completely the same. However, a displacement of the embossing forms 3A, 3B relative to each other would inevitably result in damage to the printing material. The displacement of the embossing molds 3A, 3B relative to each other is avoided by applying one of the embossing molds, e.g. the male mold 3A contains fitting elements designed as fitting elements 13. According to the fitting elements 13, depressions are provided on the female mold 3B. The fitting elements 13 and the depressions are executed a stamping mold, but have no overflow 12 corresponding free space, since here an exact fixation is required.

The assembly of female mold 3A and male mold 3B takes place in such a way that the male part 3B on the back, the side facing away from the embossing motif 14, carries a bonding agent, eg a double-sided adhesive tape, this male mold 3B with the fitting elements 13 into the corresponding recesses of the female mold 3A, which is on the forme cylinder 2 of a coating unit, the blanket cylinder of a printing unit or the impression cylinder 1 is inserted, and then the composite is carried out slowly or in the state and under pressure through the pressure gap of the cylinder group. In the process, the male mold 3B transfers precisely to the cooperating cylinder and remains firmly attached there. After the successful assembly of the or the fitting elements 13 are removed by a suitable tool, such as a knife or a milling cutter. The embossing tool 3 is then operatively mounted with its female mold 3A and its male mold 3B on the cylinders of the printing machine.

LIST OF REFERENCE NUMBERS

1 impression cylinder

2 blanket cylinders / blanket cylinder / forme cylinder

3 embossing mold / embossing tool

3A stamping mold / embossing tool / die

3B stamping die / embossing tool / male

3C auxiliary foil / spacer foil / spacer element

4 base plate

5 register frames

6. Basic form

7 register punches

8 Scaling / Grid

9 clamping device

10 die element

11 male element

12 overfilling

13 fitting element

14 embossed motif / patrix element

Claims

claims

1. A method for producing an embossment in a printing press with an embossing tool, which is mounted on a forme cylinder or a blanket cylinder or a counter-pressure cylinder, characterized in that the embossing tool as part of a two-part embossing mold (3A, 3B) together with a by a corresponding embossing mold (3B, 3A) is mounted on a first cylinder, that the back of the counter tool is provided with a self-adhesive surface and that the counter tool is positioned by rolling the cylinder with a counter-cylinder on the surface of the counter-cylinder.

2. The method according to claim 1, characterized in that the embossing tool is preassembled on a base plate (4).

3. The method according to claim 1, characterized in that the embossing tool in the manner of a high-pressure plate, preferably as

Photopolymer plate is formed.

4. The method according to claim 1 to 3, characterized in that the embossing tool itself or an associated with this pad plate (4) is clamped in the printing press on the cylinder.

5. The method according to claim 1 to 4, characterized in that the counter tool mounted accurately to the embossing tool and that the back of the counter tool is activated as a self-adhesive surface.

6. The method according to claim 1 to 5, characterized in that the counter tool is fastened with the interposition of a spacer element on the embossing tool, wherein the spacer element residue-free removal bar is mounted.

7. The method according to claim 6, characterized in that the spacer element on one or both sides has an adhesive surface.

8. The method according to claim 6, characterized in that the spacer element has recesses for embossing elements.

9. A device for embossing by means of an upper and lower tool in a printing machine, wherein on the blanket cylinder or forme cylinder a

Plate is mounted on which a stamping tool is fixed, characterized in that on the impression cylinder (1) a counter plate is arranged, which is removable and the embossing forms (3A or 3B) containing Gegenwerk- tool carries.

10. The device according to claim 9, characterized in that the counter plate is provided as a backing plate (4) on the impression cylinder (1) with a register.

11. The device according to claim 9 and 10, characterized in that an automatic disk loading device on the forme cylinder (2) and / or the impression cylinder (1) for feeding and discharging the embossing tool or the composite of embossing tool and base plate (4) is provided.

12. The device according to claim 9 to 11, characterized in that embossing forms (3A, 3B) are designed as Braille sensing elements or their counter-forms bearing shapes.

13. The device according to claim 12, characterized in that a first embossing mold (3A or 3B) is designed as full-surface evenly distributed Braille sensing elements or their counter-forms bearing embossing tool and that the corresponding embossing mold (3B or 3A) as a counter tool in the form of one or more Part embossing forms is executed, the embossing elements of the Braille feeler elements or their counter-forms of the first embossing mold (3A or 3B) can be assigned.

14. Photopolymer embossing plate for embossing paper, paper composites, plastic or metal foils in a sheet-fed rotary printing press, preferably sheetfed offset printing press, characterized in that a first embossing mold (3B) next to the embossing motives (14) fitting elements

(13) which fit precisely into the corresponding counter-elements of a corresponding embossing mold (3A).

15. A method for assembling a photopolymeric embossing plate in a device according to claim 14, characterized in that the male mold (3B) with the embossing motifs (14) and the fitting elements (13) into the corresponding, corresponding recesses of Matri ZO

3A), wherein the female mold (3A) is located on the forme cylinder (2) of a coating unit, on the blanket cylinder of a printing unit or on the impression cylinder of a sheet-processing printing machine, wherein the male mold (3B) on the embossing motif (14 ) side facing a bonding agent carries.

16. A method of assembling a photopolymeric embossing plate in a Vorrichfung according to claim 15, characterized in that the composite of female mold (3A) and male mold (3B) is introduced under pressure into a pressure nip of a pair of cylinders, wherein the male mold (3B) on the Cylinder transfers, which is opposite to the cylinder, which carries the female mold (3A), wherein the male mold remains adhered to this cylinder by the bonding agent.

17. A method for mounting a photopolymeric embossing plate in a device according to claim 16, characterized in that fitting elements (13) are removed from the male mold (3B) by a suitable tool.